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(Netter Basic Science) Frank H. Netter - Atlas of Human Anatomy-Elsevier (2018)

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Bony and Membranous Labyrinths (continued)

Bony and membranous labyrinths: schema

Anterior semicircular canal and duct

Posterior semicircular

canal and duct

Common bony and

membranous limbs

Lateral semicircular

canal and duct

Otic capsule

Stapes in oval

(vestibular) window

Incus

Malleus

Tympanic cavity

External acoustic meatus

Umbo

Tympanic membrane

Cochlear (round) window

(closed by secondary

tympanic membrane)

Ampullae

Vestibule

Dura mater

Endolymphatic sac

Otic capsule

Auditory tube (eustachian)

Endolymphatic duct

in vestibular aqueduct

Utricle

Saccule

Helicotrema of cochlea

Ductus reuniens

Scala vestibuli

Cochlear duct

Scala tympani

Cochlear aqueduct

Section through turn of cochlea

Osseous

spiral lamina

Nerve fibers

Scala vestibuli

Vestibular (Reissner’s)

membrane

Cochlear duct

Spiral ligament

Modiolus of cochlea

Spiral ganglion

(of Corti)

Scala tympani

Tectorial membrane

Spiral organ (of Corti)

Basilar membrane

Osseous cochlea

Outer hair cells

Cochlear nerve

Pillar (rod) cells

Inner hair cell

Plate 109

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Ear

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